.footer {
    background-color: #f5f5f5;
    color: #000;
    border-top: 1px solid #ddd;
}
.avatar {
    border-radius: 4px;
    max-width: 48px;
}

.avatar-lg {
    border-radius: 4px;
    max-width: 64px;
}
.divide {
    border-top: 1px solid #f5f5f5;
}
.topic-detail-content {
    -ms-text-size-adjust: 100%;
    -webkit-text-size-adjust: 100%;
    color: #333;
    font-family: "Helvetica Neue", Helvetica, "Segoe UI", Arial, freesans, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
    font-size: 16px;
    line-height: 1.6;
    word-wrap: break-word;
}

.topic-detail-content-img {
    max-width: 80%;
    margin-bottom: 15px;	
}